| American Association of Port Authorities: Represents more than 140 public port authorities in the United States, Canada, Latin America and the Caribbean. |
| European Seaports Organization: ESPO represents all the ports within the European Union and has observer members from countries that may ultimately join the EU. Features publications, statistics, policy statements and links. |
| Harbor Transportation Club: It is our mission to develop cooperation, understanding and coordination, among the shippers, carriers and the various trade and transportation organizations in the Long Beach/Los Angeles Harbor Area. |
| Harbormasters.org: Home of the North Shore Harbormasters Association, an affiliation of the Harbormaster Departments on the North Shore of Eastern Massachusetts. |
| International Association Cities & Ports: The IACP is an international network of decision makers and technicians in the development of ports. |
| Marine Exchange of Alaska: A non-profit organization established to serve the Alaska maritime community by providing information, communications and services to ensure safe, efficient and environmentally responsible maritime operations. |
| Maritime Association of the Port of NY / NJ: The mission of the MAPNY/NJ is to serve the maritime community in the New York/New Jersey region by monitoring and disseminating information about port and ship activity to its members and the public. |
| New York Shipping Association, Inc.: The mission of the association is to maximize the efficiency, cost competitiveness, safety and quality of marine cargo activities within the New York/New Jersey Port complex on behalf of its members. |
| Swedish Ports and Stevedores Association: The aim of the association is to defend the interests of ports, to establish cooperation between ports and to support maritime transport and shipping interests in general. |